Static Hosts

You might want to assign some DHCP clients a permanent IP address that never changes. This client is then known as a static host. You can define up to 120 static hosts.

To manually allocate a permanent IP address to a specific client, complete the following steps:

Procedure

Step 1

Click IPv4 Configuration > DHCP Server > Static Hosts.

The static hosts are displayed. The fields displayed are described in the Add page, except for the following:

  • MAC Address/Client Identifier

Step 2

To add a static host, click Add, and enter the fields:

IP Address

Enter the IP address that was statically assigned to the host.

Host Name

Enter the host name, which can be a string of symbols and an integer.

Mask

Enter the static host’s network mask.

  • Network Mask—Check and enter the static host’s network mask.

  • Prefix Length—Check and enter the number of bits that comprise the address prefix.

Identifier Type

Set how to identify the specific static host.

  • Client Identifier—Enter a unique identification of the client specified in hexadecimal notation, such as: 01b60819681172.

    Or:

  • MAC Address—Enter the MAC address of the client.

    Enter either the Client Identifier or MAC Address, according to which type you selected.

Client Name

Enter the name of the static host, using a standard set of ASCII characters. The client name must not include the domain name.

Default Router IP Address (Option 3)

Select from the following options (Auto, Disable, User Defined) the default router for the static host.

Domain Name Server IP Address (Option 6)

Select one of the devices DNS servers (if already configured) or select Other and enter the IP address of the DNS server available to the DHCP client.

Domain Name (Option 15)

Enter the domain name for the static host.

NetBIOS WINS Server IP Address (Option 44)

Enter the NetBIOS WINS name server available to the static host.

NetBIOS Node Type (Option 46)

Select how to resolve the NetBIOS name. Valid node types are:

  • Hybrid—A hybrid combination of b-node and p-node is used. When configured to use h-node, a computer always tries p-node first and uses b-node only if p-node fails. This is the default.

  • Mixed—A combination of b-node and p-node communications is used to register and resolve NetBIOS names. M-node first uses b-node; then, if necessary, p-node. M-node is typically not the best choice for larger networks because its preference for b-node. Broadcasts increases network traffic.

  • Peer-to-Peer—Point-to-point communications with a NetBIOS name server are used to register and resolve computer names to IP addresses.

  • Broadcast—IP Broadcast messages are used to register and resolve NetBIOS names to IP addresses.

SNTP Server IP Address (Option 4)

Select one of the device’s SNTP servers (if already configured) or select Other and enter the IP address of the time server for the DHCP client.

File Server IP Address (siaddr)

Enter the IP address of the TFTP/SCP server from which the configuration file is downloaded.

File Server Host Name (sname/Option 66)

Enter the name of the TFTP/SCP server.

Configuration File Name (file/Option 67)

Enter the name of the file that is used as a configuration file.

Step 3

Click Apply. The Running Configuration file is updated.

Step 4

To view the static host details, select an IP address from the Static Host Table and click the Details tab.